Haptic Interface for Simulator, Such as a Colonoscopy Simulator

a simulator and interface technology, applied in the field of interfaces using simulators, can solve the problems of increasing the risk of patients, increasing the time of procedure, and increasing the force and torque felt during such a procedur

Inactive Publication Date: 2012-07-12
ECOLE POLYTECHNIQUE FEDERALE DE LAUSANNE (EPFL)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0021]It is an aim of the present inventio

Problems solved by technology

Due to difficult hand-eye coordination, complicated guidance of the flexible endoscope and the risk of colon injury, these techniques need to be performed by highly tr

Method used

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  • Haptic Interface for Simulator, Such as a Colonoscopy Simulator
  • Haptic Interface for Simulator, Such as a Colonoscopy Simulator
  • Haptic Interface for Simulator, Such as a Colonoscopy Simulator

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Embodiment Construction

[0041]A general perspective view of the device 1 according to the invention is illustrated in FIGS. 1 and 2. More specifically as mentioned above, the device 1 according to the invention is used to simulate the use of a medical device, in this case an endoscope, in a human body. It thus comprises a first part 2, called an endoscopic interface, which carries a system measuring the axial displacement of an endoscope (for example) and also its rotation and at the same time is able to provide linear et rotational force feedback to the endoscope. The device also has a second part 3 which comprises a brake system that will be explained in a detailed manner hereunder.

[0042]FIGS. 3, 4 and 5 shows a detailed view of the endoscopic interface 2.

[0043]A transversal guiding tube 4 is mounted on fixed bearings 5, 6 (see FIGS. 1, 2 and 5) for free rotation around the insertion axis. An electrical connection is provided by a slip-ring pair that allows an infinite rotational movement of the tube 4 a...

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Abstract

A device for endoscopic simulation includes an endoscopic interface with a guiding tube for guiding an endoscope. The tube is mounted on bearings for free rotation and includes windows for allowing a contact between the endoscope and friction rollers for tracking axial displacement of the endoscope and for imposing a linear force feedback on the endoscope. One friction roller is connected to a motor for transmission of torque generated by the motor. Another friction roller is connected to an encoder for tracking its axial displacement. The device further includes an axial brake for blocking axial movement of the endoscope while allowing rotation of the endoscope. The axial brake includes two pairs of brake rollers placed around the endoscope. One pair of brake rollers is movable relatively to another pair for realizing the axial blocking. One friction roller is mounted on the tube via a lever actuated by spring means for allowing smooth insertion of endoscopes having different sizes and ensuring sufficient contact force on the endoscope of the brake rollers.

Description

FIELD OF THE INVENTION[0001]The present invention concerns interfaces using simulators for training of surgical procedure and more particularly to a haptic interface for a colonoscopy simulator.BACKGROUND ART[0002]Colonoscopy is a minimally invasive surgery procedure where the colon of a patient is examined with an endoscope. The instrument is called a colonoscope which is a long flexible tube with an integrated imaging device at its tip. The colonoscope allows physicians to treat lesions while visualizing the colon. Due to difficult hand-eye coordination, complicated guidance of the flexible endoscope and the risk of colon injury, these techniques need to be performed by highly trained end experienced physicians. The importance of training colonoscopy procedures rises with the growth of variety of colon diseases and growing need to screen as a preventative measure.[0003]Some training for colonoscopy is performed on real patients once the physician has passed his / her novice level. T...

Claims

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Application Information

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IPC IPC(8): G09B19/00
CPCG09B23/28
Inventor FLACTION, LIONELSAMUR, EVRENMAILLARD, PASCAL
Owner ECOLE POLYTECHNIQUE FEDERALE DE LAUSANNE (EPFL)
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